What timing are you NA guys running
07-05-2007, 08:46 PM
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What timing are you NA guys running I'm currently at 31.5 spark advance. What timing are you naturally aspirated guys running?
**edit: im at 31.5 i was looking at the ecm constants table which was at 40 but according to the correct tables im at 31.5.
**edit: im at 31.5 i was looking at the ecm constants table which was at 40 but according to the correct tables im at 31.5.
Last edited by C_Rules; 07-08-2007 at 09:47 AM.
07-06-2007, 09:46 AM
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Originally Posted by TwoFast4Lv
most we have had luck with is 36(including 4degree adder) More tends to get knock or just not make power 
That is just our experiance.
That is just our experiance.
*where are you guys changing your timing? in the constants table under max spark advance and where else.
Last edited by C_Rules; 07-06-2007 at 10:06 AM.
07-06-2007, 01:43 PM
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Originally Posted by Formula350
huh My stock tune was max of 48, I knocked it down about 2% across the board >_> (I don't know why lol sounded like a good idea).
what tables did you do that in? and did it do you any good?
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07-06-2007, 01:44 PM
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Originally Posted by C_Rules
I'm currently at 40 max spark advance. What timing are you naturally aspirated guys running?
07-06-2007, 01:49 PM
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Originally Posted by Sweetred95ta
What does this mean? Do you mean 40* max, no matter rpm/map? I run 36 @ WOT, but 40* is fine for part throttle.
i was talking about the ecm constants table under max spark advance in tunercats. i also wanted to get an idea of what tables you guys were changing your timing in and with what values. im getting slight knock so i just want to mess with the timing a little to see what happens.
07-06-2007, 02:06 PM
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Originally Posted by ABA383
No, sorry, its how Bryan Herter set it a few years ago...
--Alan
--Alan
07-06-2007, 02:19 PM
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Originally Posted by C_Rules
okay, thats what sux when you start doing your own tuning. its hard to find somebody that can really help you out that isn't a dynotuner whose going to charge you like 500 bux to tune your car. i had my car tuned but now im trying to play around with it.
There are people around to help
One of the big issues we had was low octain mode. once the car is kicked into it(solid knock retard) the PCM would stay there and use a multiplier for sensitivity all the time until the car was restarted.
We solved this by zeroing all the low octain tables and using a max value for retard. Then we adjusted the knock retard curve to come back to normal faster. We have it come back as fast as we feel is safe. By using the max retard value you have safety and by emitting the Low octain talbes you have repeatability
BTW those tables were only available in Tune cats!
07-06-2007, 02:29 PM
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Originally Posted by TwoFast4Lv
There are people around to help
One of the big issues we had was low octain mode. once the car is kicked into it(solid knock retard) the PCM would stay there and use a multiplier for sensitivity all the time until the car was restarted.
We solved this by zeroing all the low octain tables and using a max value for retard. Then we adjusted the knock retard curve to come back to normal faster. We have it come back as fast as we feel is safe. By using the max retard value you have safety and by emitting the Low octain talbes you have repeatability
BTW those tables were only available in Tune cats!
One of the big issues we had was low octain mode. once the car is kicked into it(solid knock retard) the PCM would stay there and use a multiplier for sensitivity all the time until the car was restarted.
We solved this by zeroing all the low octain tables and using a max value for retard. Then we adjusted the knock retard curve to come back to normal faster. We have it come back as fast as we feel is safe. By using the max retard value you have safety and by emitting the Low octain talbes you have repeatability
BTW those tables were only available in Tune cats!
07-06-2007, 09:43 PM
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OK I forgot, I remember now what I did. I used the "Smooth Table" function in TunerPro, which made the table not so erratic.
Did it help? Don't know. I have a 93, so I would have to burn a new EPROM every tune change.
Also, if this looks bad, it's because I don't know what I'm doing ^_^
The white is CURRENT
The yellow is STOCK
EDIT: Sorry for the crappy table pic. 100k upload limit.
BTW, I did this same smoothing to my Volumetric Tables, and that's the one I think I upped 2.5% across the board heh I don't remember, it's been 1/2 a year.
Did it help? Don't know. I have a 93, so I would have to burn a new EPROM every tune change.
Also, if this looks bad, it's because I don't know what I'm doing ^_^
The white is CURRENT
The yellow is STOCK
EDIT: Sorry for the crappy table pic. 100k upload limit.
BTW, I did this same smoothing to my Volumetric Tables, and that's the one I think I upped 2.5% across the board heh I don't remember, it's been 1/2 a year.
Last edited by Formula350; 07-06-2007 at 09:51 PM.
